Dual-Lite 12-704 Made by Hawker for Dual-Lite; Cyclon Monobloc with F2 (.250) terminals recessed 3.75Lx2.0Wx2.87H". Cross Reference: 0809-0010 0809-3013 PSG450 DUAL-LITE 12-704 12-770 Sureway 2004 NOTE: Pure Lead-Tin batteries come charged from the factory. They have a longer shelf life versus conventional lead batteries; approximately 20 months before use and required recharging. You must make sure that these batteries are always charged; therefore if they sit on your shelf we suggest that you recharge them every 18 months. Store at a cool temperature. Higher temps will lead to increased discharge on the shelf. Pure Lead-Tin batteries may not recoup their charge if sitting on the shelf too long without a recharge. When installed in their respective pieces of equipment they will then receive a trickle charge.